Natural approaches can reduce H. pylori colonization and ease stomach inflammation, but none have been shown to reliably eradicate the infection on their own. Probiotics, certain foods, and herbal remedies work best as complements to standard antibiotic therapy, where they can boost eradication rates by roughly 14% and reduce side effects. If you’re looking to avoid antibiotics entirely, the evidence is worth understanding in full before you decide.
Why Natural Treatments Alone Fall Short
H. pylori is a stubborn bacterium that burrows into the mucus lining of the stomach, where it’s shielded from most of what you swallow. Clinical reviews have been clear on one point: probiotic monotherapy can suppress bacterial growth but is incapable of eradication. The same pattern holds for herbs, foods, and supplements. They can lower the bacterial load, calm inflammation, and improve symptoms, but they rarely eliminate the infection completely.
That said, “not a cure on its own” doesn’t mean “not useful.” Several natural options have real clinical data behind them, and combining them with standard treatment produces measurably better outcomes than antibiotics alone.
Probiotics: The Strongest Supporting Evidence
Probiotics are the most studied natural intervention for H. pylori, and the data is encouraging when they’re paired with antibiotics. A 2025 meta-analysis found that taking probiotics before starting antibiotic therapy raised eradication rates from about 70% to 80%. That 10-percentage-point difference is meaningful when you consider how common antibiotic resistance has become.
One strain that stands out is Lactobacillus reuteri DSMZ 17648. In a randomized trial of patients with H. pylori and functional dyspepsia, L. reuteri combined with an acid-reducing medication achieved a 65% eradication rate over eight weeks. That compared to 74% with standard triple antibiotic therapy, a difference that wasn’t statistically significant. It’s one of the few cases where a probiotic regimen came close to matching antibiotics head-to-head.
Saccharomyces boulardii, a beneficial yeast, has also shown the ability to reduce H. pylori colonization in the gut. However, like other probiotics, it doesn’t eradicate the bacteria when used alone. Its real value is in reducing the digestive side effects (diarrhea, nausea, bloating) that make people quit their antibiotic course early.
Broccoli Sprouts and Sulforaphane
Broccoli sprouts are one of the richest sources of sulforaphane, a compound that directly inhibits H. pylori growth in the stomach lining. In a clinical trial, H. pylori-positive patients who consumed 6 grams of broccoli sprout powder daily for 28 days saw significant drops in markers of stomach inflammation. The effect was even more pronounced when the sprouts were combined with standard antibiotic therapy.
You can get sulforaphane from fresh broccoli sprouts (available at most grocery stores or easy to grow at home) or from concentrated powder supplements. The clinical dose of 6 grams of powder per day is roughly equivalent to about 2 to 3 ounces of fresh sprouts.
Cranberry Juice
Cranberry juice contains proanthocyanidins, compounds that appear to prevent H. pylori from adhering to the stomach wall. In a double-blind trial, drinking 480 mL (about two cups) of high-proanthocyanidin cranberry juice daily for eight weeks reduced H. pylori infection rates by 20% compared to placebo. A separate trial in China found a 14% decrease in infection rates after 90 days of drinking 500 mL daily.
The key detail is concentration. Not all cranberry juices are equal. The effective doses in studies used juice standardized to contain at least 44 mg of proanthocyanidins per 240 mL serving. Most commercial cranberry cocktails are diluted with sugar and water and contain far less. Look for 100% cranberry juice or supplements that list proanthocyanidin content.
Green Tea
Green tea polyphenols, particularly the catechins concentrated in every cup, inhibit a critical enzyme called urease that H. pylori uses to survive in stomach acid. Lab studies found that green tea extract was potent against this enzyme at very low concentrations. In animal models, green tea extract suppressed H. pylori-related stomach inflammation.
The catch is that lab potency doesn’t always translate to the human stomach, where tea gets diluted and processed quickly. Still, regular green tea consumption is low-risk and provides antioxidant benefits that support the stomach lining. Drinking 3 to 5 cups daily is a reasonable approach if you’re dealing with H. pylori.
Honey
Honey has broad antibacterial properties driven by its high sugar content (which dehydrates bacteria), naturally acidic pH, and the hydrogen peroxide released when it’s diluted by stomach fluids. Lab studies have found that a 20% concentration of natural honey inhibits H. pylori growth. Manuka honey gets particular attention because of its additional antibacterial compounds, though most clinical research has used unprocessed natural honey rather than a specific variety.
Honey’s acidity may also help counteract the alkaline environment H. pylori creates around itself to survive in the stomach. Taking 1 to 2 tablespoons on an empty stomach is a common approach, though no clinical trial has established an optimal dose for H. pylori specifically.
Mastic Gum
Mastic gum is a resin from trees grown on the Greek island of Chios, and it has a long folk history as a stomach remedy. In a randomized pilot study, patients took either 350 mg three times daily or a higher dose of just over 1 gram three times daily for 14 days. While mastic gum showed some anti-H. pylori activity, eradication rates were modest compared to antibiotic therapy. It may be more useful for symptom relief, particularly for the burning and discomfort associated with gastritis, than for eliminating the infection.
Oregano Oil
Oregano contains phenolic compounds that inhibit both H. pylori growth and its urease activity. In lab testing, oregano extract at relatively low concentrations reduced urease function by 52%. Combining oregano with cranberry extract appeared to enhance the effect, with the two working synergistically in certain conditions.
Oregano oil supplements are widely available, but potency varies enormously between products. If you try it, look for supplements standardized to carvacrol content, since that’s the primary active phenolic. Start with a low dose, as concentrated oregano oil can irritate the stomach lining, which is counterproductive when you’re already dealing with gastritis.
Licorice Root (DGL)
Deglycyrrhizinated licorice, or DGL, is licorice root with the compound that raises blood pressure removed. It works less as a direct antibacterial and more as a stomach protector. In animal studies, licorice extract significantly reduced stomach mucosal damage caused by H. pylori and lowered inflammatory markers in gastric cells. The benefit appears to come from calming the inflammatory response to infection rather than killing the bacteria itself.
DGL is available as chewable tablets and is commonly taken before meals. It’s one of the gentler options on this list and pairs well with other approaches.
Putting It All Together
The most effective natural strategy isn’t choosing one remedy. It’s layering several evidence-backed options alongside conventional treatment. If you’re taking antibiotics for H. pylori, adding probiotics before and during treatment measurably improves your odds of clearing the infection and reduces the nausea, diarrhea, and bloating that antibiotics cause. Incorporating broccoli sprouts, cranberry juice, and green tea into your daily diet adds further anti-H. pylori activity at no real risk.
If you’re determined to try natural approaches first, be realistic about the timeline and get retested. An H. pylori stool antigen test can confirm whether the bacteria is still present after several weeks of natural treatment. Leaving H. pylori untreated long-term raises the risk of peptic ulcers and, in a small percentage of cases, stomach cancer. The natural options described here can meaningfully support your treatment, but the bacteria’s ability to shelter deep in your stomach lining makes it exceptionally difficult to eliminate without antibiotics.